CPPD in seronegative RA? Among 364 RA patients - 73% seropositive & 26% seronegative (n=96). Amongst latter, 18 pt (18.9%) met CPPD-disease criteria. CPPD+ pts were more likely to be older & have Hx of acute episodic arthritis https://t.co/XO0J6Adaa0 https://t.co/3ouUCPshoh